JP2010226257A - Communication relay program, on-vehicle unit, and communication relay method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress radiowave interference that occurs in a radio band. <P>SOLUTION: An on-vehicle unit, upon establishment of communication with a terminal device brought into a vehicle, outputs whether registration of discrimination information such as telephone number for discriminating terminal devices is required or not to a monitor, and registers discrimination information regarding which registration request has been accepted. It requests interruption of radiowave from the terminal device whose discrimination information has been registered, and instructs to perform IP communication through the on-vehicle unit. When various information about IP communication is received from the terminal device, the IP communication between the terminal device and a base station for ITS is relayed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a communication relay program, an in-vehicle device, and a communication relay method.

  2. Description of the Related Art Conventionally, intelligent transport systems (ITS) that realize services such as improvement of vehicle safety and reduction of traffic congestion are known. This intelligent road traffic system uses, for example, road-to-vehicle communication between ITS base stations installed on the road and on-vehicle devices mounted on vehicles, and vehicle-to-vehicle communication between each on-vehicle device. A service is realized by exchanging various information.

  In road-to-vehicle communication and vehicle-to-vehicle communication, for example, a radio band is assigned to each in-vehicle device from an ITS base station, and each in-vehicle device performs communication using the assigned wireless band. However, since the available radio band is limited, an increase in the number of vehicles that pass through will lead to a shortage of the radio band. Therefore, recently, there are various techniques for effectively using the radio band allocated to the in-vehicle device.

JP 2003-230177 A JP 2008-42850 A JP 2006-54558 A JP 2004-318393 A

  However, the above-described conventional technique has a problem that radio wave interference occurs in the radio band. Specifically, in communication in an intelligent transportation system, if any radio wave interference from a wireless device different from the vehicle-mounted device occurs in the wireless band used for the communication, the communication quality in the wireless band Is considered to be reduced. In particular, radio waves generated by a terminal device such as a mobile phone using a radio band close to a radio band in road-to-vehicle communication can cause radio wave interference.

  For these reasons, the above-described conventional technology cannot suppress radio wave interference caused by radio waves generated by the terminal device, no matter how effectively the limited radio band is used. The generated radio wave interference also hinders the use of the terminal device under the intelligent road traffic system. As countermeasures against radio wave interference, it is conceivable to use a filter that absorbs radio waves or to uniformly control the use of terminal devices, but in either case, it is not practical.

  Therefore, the technology disclosed in the present application has been made in view of the above, and provides a communication relay program, an in-vehicle device, and a communication relay method capable of suppressing radio wave interference that occurs in a wireless band. Objective.

  In order to solve the above-described problems and achieve the object, the communication relay program disclosed in the present application transmits a stop request for stopping a wireless communication function to a terminal device that performs wireless communication with a base station for the terminal device. A transmission switching procedure, a communication switching instruction procedure for transmitting to the terminal device an instruction to switch to communication with the base station device for the in-vehicle device via the in-vehicle device, the terminal device, and the base station device for the in-vehicle device It is a requirement that a computer execute a communication relay procedure for relaying communication with a computer.

  According to one aspect of the communication relay program, the in-vehicle device, and the communication relay method disclosed in the present application, there is an effect that radio wave interference that occurs in a wireless band can be suppressed.

FIG. 1 is a diagram for explaining an example of a system configuration including an in-vehicle device. FIG. 2 is a diagram for explaining processing by the vehicle-mounted device according to the first embodiment. FIG. 3 is a diagram illustrating a configuration example of the vehicle-mounted device according to the first embodiment. FIG. 4 is a diagram illustrating a format example of connection information. FIG. 5 is a diagram illustrating a configuration example of the terminal device according to the first embodiment. FIG. 6 is a flowchart for explaining the flow of the connection information determination process in the in-vehicle device according to the first embodiment. FIG. 7 is a flowchart for explaining the flow of the connection information determination process in the terminal device according to the first embodiment. FIG. 8 is a sequence diagram for explaining the flow of transmission and relay processing according to the first embodiment. FIG. 9 is a diagram illustrating a computer that executes a communication relay program. FIG. 10 is a diagram illustrating a computer that executes a communication switching program.

  Embodiments of a communication relay program, an in-vehicle device, and a communication relay method disclosed in the present application will be described below with reference to the accompanying drawings. In addition, this invention is not limited by the following examples.

  First, a system configuration including an in-vehicle device disclosed in the present application will be described with reference to FIG. FIG. 1 is a diagram for explaining an example of a system configuration including an in-vehicle device. Moreover, the process by the vehicle equipment which concerns on Example 1 is demonstrated using FIG. FIG. 2 is a diagram for explaining processing by the vehicle-mounted device according to the first embodiment.

  As shown in FIG. 1, the in-vehicle device disclosed in the present application is mounted on a mobile body such as a vehicle, and performs wireless communication with an ISP (Internet Services Provider) via an ITS base station, a gateway device, and a network. Do. In addition, an in-vehicle device mounted on a vehicle performs IP (Internet Protocol) connection in the communication area of the base station for ITS, and has functions such as VoIP (Voice over Internet Protocol) telephone call and Web access by the IP connection.

  On the other hand, the network is also used when wireless communication is performed by a terminal device such as a mobile phone or a PHS (Personal Handyphone System). Specifically, the terminal device performs wireless communication with the ISP as a general mobile network via the base station, the gateway device, and the network for the terminal device.

  Further, as shown in FIG. 2, the in-vehicle device is laid on, for example, a dashboard disposed in front of the vehicle in the vehicle, and provides various services in cooperation with a car navigation device or the like. The in-vehicle device may have a monitor or touch panel display for displaying and outputting various information, an audio function, and the like. In addition, a present Example demonstrates the case where a terminal device is utilized within the vehicle by which onboard equipment is mounted.

  In the configuration described above, the in-vehicle device detects that communication between the in-vehicle device and the terminal device has been established, as illustrated in (1) of FIG.

  More specifically, the in-vehicle device detects that wired communication or wireless communication between the in-vehicle device and the terminal device brought into the vehicle is established. The communication between the in-vehicle device and the terminal device may be, for example, a wired connection using a cable, or a wireless connection using Bluetooth (registered trademark) or the like. Note that in the case of wireless connection using Bluetooth (registered trademark), communication is established without particular awareness of users such as in-vehicle devices and terminal devices.

  Then, as shown in (2) of FIG. 2, the in-vehicle device performs wireless communication with the terminal device that performs wireless communication with the base station for the terminal device when establishment of communication with the terminal device is detected. Send a function stop request. The in-vehicle device transmits an instruction to switch to communication with the in-vehicle device base station device via the in-vehicle device to the terminal device.

  Specifically, in the example described above, the in-vehicle device transmits a request for stopping the wireless communication function in the general mobile network to the terminal device when the establishment of wired communication or wireless communication with the terminal device is detected. . The wireless communication function requested to be stopped is a wireless communication function between the terminal device and the base station for the terminal device, that is, a wireless communication function in a general mobile network, and communication between the terminal device and the in-vehicle device. It is not a function.

  On the other hand, the terminal device that has received the stop request from the in-vehicle device stops the wireless communication function in the general mobile network by, for example, switching a circuit of an RF (Radio Frequency) unit included in the terminal device.

  Further, the in-vehicle device transmits an instruction to switch to communication with the ITS base station via the in-vehicle device to the terminal device. The communication switching instruction transmitted to the terminal device is, for example, an instruction to transmit information related to communication such as a telephone call or web access using the terminal device to the in-vehicle device.

  On the other hand, when receiving a communication switching instruction from the in-vehicle device, for example, when making a call, the terminal device transmits a format related to connection information including voice information to the in-vehicle device.

  Subsequently, as shown in (3) of FIG. 2, the in-vehicle device relays communication between the terminal device and the base station device for the in-vehicle device.

  Specifically, in the example described above, the in-vehicle device that has received the format including the voice information from the terminal device uses the VoIP call function based on the IP connection with the ITS base station, and the terminal device and the ITS It relays voice information related to IP telephones with other base stations. In the relay process of voice information such as an IP phone, the voice information is exchanged between the in-vehicle device and the terminal device while inputting the voice information in the format. As a result, the terminal device can make a call using an IP telephone by relaying communication by the in-vehicle device. However, the fee generated by the IP phone is charged at the in-vehicle device, not the terminal device.

  In other words, the in-vehicle device detects the connection with the terminal device in the vehicle, requests the terminal device to stop the wireless communication function in the general telephone network, and performs communication such as a call or web access by the terminal device. An instruction to switch to communication via the in-vehicle device is transmitted to the terminal device, and the communication between the terminal device and the ITS base station is relayed. The generated radio wave interference can be suppressed.

[Configuration of in-vehicle device]
Next, the configuration of the vehicle-mounted device according to the first embodiment will be described with reference to FIG. FIG. 3 is a diagram illustrating a configuration example of the vehicle-mounted device according to the first embodiment.

  As illustrated in FIG. 3, the in-vehicle device 100 includes a terminal I / F unit 101, an ITS base station I / F unit 102, a storage unit 110, and a control unit 120. The in-vehicle device 100 performs IP connection in the communication area of the base station for ITS, and has functions such as VoIP call and Web access by the IP connection.

  The in-vehicle device 100 includes, for example, a monitor (or touch panel display) that displays and outputs various information, a speaker, and the like. Moreover, the vehicle equipment 100 has input devices, such as an operation button for operating the vehicle equipment 100, a jog dial, etc. around a monitor, for example. In addition, as a monitor that is a display device, an operation button that is an input device, or the like, an external device such as a car navigation device connected to the in-vehicle device 100 may be used.

  The terminal I / F unit 101 is an interface used for communication with a terminal device. For example, the terminal I / F unit 101 is an interface used for wired communication by cable connection with a terminal device such as a mobile phone brought into the vehicle or wireless communication by Bluetooth (registered trademark) connection. Various types of information exchanged between the in-vehicle device 100 and the terminal device are transmitted / received via the terminal I / F unit 101.

  The ITS base station I / F unit 102 is an interface used for wireless communication with the ITS base station. For example, the ITS base station I / F unit 102 is an interface used for wireless communication between the in-vehicle device 100 and the ITS base station when a VoIP call or Web access is performed by IP connection. Various types of information exchanged between the in-vehicle device 100 and the ITS base station are transmitted / received via the ITS base station I / F unit 102.

  The storage unit 110 stores data necessary for various processes by the control unit 120 and various processing results by the control unit 120. For example, the storage unit 110 stores identification information for individually identifying terminal devices. The identification information stored by the storage unit 110 is information for uniquely identifying a terminal device such as a telephone number or a SIM (Subscriber Identity Module) card number.

  The control unit 120 has an internal memory for storing a control program, a program that defines various processing procedures, and required data, and in particular, a reception unit 121, a connection information determination unit 122, and a connection processing unit 123. , And a transmission unit 124, which perform various processes. For example, when the terminal I / F unit 101 establishes wired communication using a cable or wireless communication using Bluetooth (registered trademark) between the in-vehicle device 100 and the terminal device, the control unit 120 establishes the communication. Is detected.

  The receiving unit 121 receives various information transmitted from the terminal device via the terminal I / F unit 101. For example, the receiving unit 121 receives, via the terminal I / F unit 101, connection information for connection with the in-vehicle device 100 transmitted from the terminal device and input information for the ITS base station for IP communication. .

  The receiving unit 121 receives various information transmitted from the ITS base station via the ITS base station I / F unit 102. For example, the receiving unit 121 receives the output information for the terminal device related to the IP communication transmitted from the ITS base station via the ITS base station I / F unit 102.

  Here, the connection information received by the receiving unit 121 will be described with reference to FIG. FIG. 4 is a diagram illustrating a format example of connection information. In this embodiment, a format when using an OFDM (Orthogonal Frequency Division Multiplexing) scheme as a communication scheme will be described.

  For example, as shown in FIG. 4, the connection information exchanged between the in-vehicle device 100 and the terminal device includes Preamble, Map information, reconnection request information, wave stop request information, and IP connection information ( Output), terminal device information, and IP connection information (input).

  Among these, reconnection request information, stop wave request information, and IP connection information (output) are DownLink information, that is, information from the in-vehicle device 100 to the terminal device. Similarly, terminal device information and IP connection information (input) are UpLink information, that is, information from the terminal device to the in-vehicle device 100. Each of the DownLink information and the UpLink information includes an area “Spare” that can be freely used.

  Preamble is information for clock synchronization, that is, information indicating the head position of connection information included in the connection information format. Map information is information indicating what information is present at which position, that is, position information of each connection information included in the connection information format. The OFDM format has preamble and map information because the position and range of various information can be freely set. That is, the various types of information included in the connection information format need not be positions and ranges as shown in FIG.

  The reconnection request information is flag information used when the in-vehicle device 100 requests reconnection to the terminal device. The wave stop request information is flag information used when the in-vehicle device 100 requests the terminal device to stop the wireless communication function. The IP connection information (output) is output to the terminal device used when information related to IP communication between the terminal device and the ITS base station is relayed using the IP communication function of the in-vehicle device 100. Information.

  On the other hand, the terminal device information is information used when a connection information format is transmitted from the terminal device to the in-vehicle device 100. For example, the terminal device information such as the phone number of the terminal device or the SIM card number is uniquely specified. This is information for identification. Also, the IP connection information (input) is for the in-vehicle device 100 used when information related to IP communication between the terminal device and the ITS base station is relayed using the IP communication function of the in-vehicle device 100. Input information. The terminal device information may include user information of a user who owns the terminal device.

  Returning to the description of FIG. 3, the connection information determination unit 122 uses the connection information received by the reception unit 121 to make various determinations related to the connection information. For example, the connection information determination unit 122 determines whether or not the terminal device information is included in the connection information received by the reception unit 121. When the connection information does not include the terminal device information, the connection information determination unit 122 notifies the connection processing unit 123 that the connection information does not include the terminal device information.

  And the connection information determination part 122 determines whether the identification information which a terminal device has is registered into the memory | storage part 110, when terminal device information is contained in connection information. Subsequently, when the connection information determination unit 122 determines that the identification information is not registered, the connection information determination unit 122 informs the display device whether or not the identification information included in the terminal device that has been determined that the identification information is not registered. Output.

  Thereafter, when the connection information determination unit 122 receives a request for registering identification information of a terminal device that has been determined that the identification information is not registered, the connection information determination unit 122 registers the identification information of the terminal device in the storage unit 110. The connection information determination unit 122 notifies the connection processing unit 123 that the identification information has been registered or has been registered when the identification information has been registered or when the identification information has been registered.

  For example, the connection information determination unit 122 determines whether the connection information received by the reception unit 121 includes IP connection information (input). When it is determined that the IP connection information (input) is included, the connection information determination unit 122 notifies the connection processing unit 123 of the IP connection information (input). The connection information determination unit 122 discards the connection information when it is determined that the IP connection information (input) is not included.

  For example, when the connection information determination unit 122 receives the IP connection information (output) for the terminal device related to the IP communication transmitted from the ITS base station by the reception unit 121, the connection information determination unit 122 outputs the IP connection information (output). ) To the connection processing unit 123.

  The connection processing unit 123 performs various processes related to connection or IP communication between the in-vehicle device 100, the terminal device, and the ITS base station. For example, when the connection information determination unit 122 is notified that the terminal information is not included in the connection information, the connection processing unit 123 sets a flag in the reconnection request information included in the connection information, and The transmission unit 124 is instructed to transmit the connection information.

  For example, the connection processing unit 123 sets a flag in the stop request information included in the connection information when the connection information determination unit 122 is notified that the identification information has been registered or the identification information has been registered. The transmission unit 124 is instructed to transmit the connection information to the terminal device. Then, the connection processing unit 123 sends a communication switching instruction for switching to communication with the base station for ITS via the in-vehicle device 100 to the terminal device together with a transmission instruction of connection information including the stop request information to the transmission unit 124. The transmission unit 124 is instructed to transmit.

  Further, for example, when the connection information including IP connection information (input) is notified by the connection information determination unit 122, the connection processing unit 123 transmits transmission of the IP connection information (input) to the ITS base station. The unit 124 is instructed.

  In addition, for example, when the connection information determination unit 122 is notified of the IP connection information (output), the connection processing unit 123 transmits the connection information including the IP connection information (output) to the terminal device to the transmission unit 124. Instruct.

  The transmission unit 124 receives various transmission instructions from the connection processing unit 123, and transmits to the terminal device via the terminal I / F unit 101 or for the ITS via the ITS base station I / F unit 102. A transmission process is performed for the base station.

  For example, the transmission unit 124 transmits connection information including reconnection request information, which is instructed by the connection processing unit 123 and flagged, to the terminal device. In addition, for example, the transmission unit 124 is switched by the connection processing unit 123 to switch to communication between the connection information including the stop request information flagged and the ITS base station via the in-vehicle device 100. An instruction is transmitted to the terminal device.

  Further, for example, the transmission unit 124 is instructed by the connection processing unit 123 and transmits IP connection information (input) to the ITS base station via the ITS base station I / F unit 102. Further, for example, the transmission unit 124 is instructed by the connection processing unit 123 and transmits connection information including IP connection information (output) to the terminal device via the terminal I / F unit 101.

[Configuration of terminal device]
Next, the configuration of the terminal device according to the first embodiment will be described with reference to FIG. FIG. 5 is a diagram illustrating a configuration example of the terminal device according to the first embodiment. Note that the terminal device illustrated in FIG. 5 may include, for example, a function unit (such as a microphone or a speaker) related to voice processing in addition to the function unit described below. In addition, as a terminal device used by a present Example, the portable terminal etc. which have the function part mentioned later and the function part regarding audio | voice processing can be used, for example.

  As illustrated in FIG. 5, the terminal device 150 includes an in-vehicle device I / F unit 151, a terminal base station I / F unit 152, a storage unit 160, and a control unit 170. The terminal device 150 includes, for example, a display (or touch panel display) that displays and outputs various information, a speaker, and the like. Further, the terminal device 150 includes an input unit such as an operation button or a jog dial for operating the terminal device 150.

  The in-vehicle device I / F unit 151 is an interface used for communication with the in-vehicle device 100. For example, the in-vehicle device I / F unit 151 is an interface used for wired communication with the in-vehicle device 100 by cable connection or wireless communication by Bluetooth (registered trademark) connection. Various types of information exchanged between the in-vehicle device 100 and the terminal device 150 are transmitted / received via the in-vehicle device I / F unit 151.

  The terminal base station I / F unit 152 is an interface used for wireless communication with the base station for the terminal device 150. For example, the terminal base station I / F unit 152 is an interface used for wireless communication between the terminal device 150 and the base station for the terminal device 150 when a call or internet communication is performed by the terminal device 150. Various information exchanged between the terminal device 150 and the base station for the terminal device 150 is transmitted / received via the terminal base station I / F unit 152.

  The storage unit 160 stores data necessary for various processing results by the control unit 170 and various processing results by the control unit 170. For example, the storage unit 160 stores information such as a mobile phone number and a mail address.

  The control unit 170 has an internal memory for storing a control program, a program defining various processing procedures, and necessary data, and in particular, a receiving unit 171, a connection information determination unit 172, a communication processing unit 173, , And a transmitter 174, which perform various processes. For example, when the in-vehicle device I / F unit 151 establishes wired communication using a cable or wireless communication using Bluetooth (registered trademark) between the in-vehicle device 100 and the terminal device 150, the control unit 170 performs the communication. Detect the establishment of

  The receiving unit 171 receives various information transmitted from the in-vehicle device 100 via the in-vehicle device I / F unit 151. For example, the receiving unit 171 receives the connection information related to the connection with the terminal device 150 and the output information from the ITS base station related to the IP communication transmitted from the in-vehicle device 100 via the in-vehicle device I / F unit 151. Receive. The receiving unit 171 receives various information transmitted from the base station for the terminal device 150 via the terminal base station I / F unit 152.

  The connection information determination unit 172 uses the connection information received by the reception unit 171 to make various determinations related to the connection information. For example, the connection information determination unit 172 determines whether or not the reconnection request information included in the connection information received by the reception unit 171 is flagged. When the reconnection request information included in the connection information is flagged, the connection information determination unit 172 notifies the communication processing unit 173 that the reconnection request information is flagged.

  Then, when the reconnection request information included in the connection information is not flagged, the connection information determination unit 172 determines whether the stop request information included in the connection information is flagged. Subsequently, when the stop request information included in the connection information is flagged, the connection information determination unit 172 notifies the communication processing unit 173 that the stop request information is flagged. . Note that the connection information determination unit 172 notifies the communication processing unit 173 that no flag is set in the stop request information when the stop request information included in the connection information is not set.

  For example, the connection information determination unit 172 determines whether the connection information received by the reception unit 171 includes IP connection information (output). When it is determined that the IP connection information (output) is included, the connection information determination unit 172 notifies the communication processing unit 173 of the IP connection information (output).

  Further, for example, when the receiving unit 171 receives various types of information related to wireless communication transmitted from the base station for the terminal device 150, the connection information determining unit 172 sends the various types of information to the communication processing unit 173. Notice.

  The communication processing unit 173 performs various processes related to connection or communication of the terminal device 150, the in-vehicle device 100, and the base station for the terminal device 150. For example, when the connection information determination unit 172 notifies that the reconnection request information is flagged, the communication processing unit 173 acquires the terminal device information from the storage unit 160, and acquires the acquired terminal device information. The transmission unit 174 is instructed to transmit the included connection information to the in-vehicle device 100.

  In addition, for example, when the communication processing unit 173 is notified by the connection information determination unit 172 that the flag is set in the wave stop request information, the communication processing unit 173 switches the circuit of the RF unit included in the terminal device 150 to switch the general mobile phone. Stop the wireless communication function in the network.

  In addition, for example, when the communication processing unit 173 is notified by the connection information determination unit 172 that the flag is not set in the wave stop request information, the communication processing unit 173 switches the circuit of the RF unit included in the terminal device 150, thereby The wireless communication function in the network is started. Note that the communication processing unit 173 maintains a state where the wireless communication function can be used when the wireless communication function in the general mobile network is already available.

  Further, for example, when the connection information determination unit 172 notifies the IP connection information (output), the communication processing unit 173 displays and outputs the IP connection information (output) on a display or a speaker. Further, for example, when the connection information determination unit 172 is notified of various types of information related to wireless communication transmitted from the base station for the terminal device 150, the communication processing unit 173 displays the various types of information on a display, a speaker, or the like. Output.

  Further, for example, when various types of information related to IP communication are input at the input unit, the communication processing unit 173 inserts the various types of information into the IP connection information (input) included in the connection information, and the The transmission unit 174 is instructed to make a transmission. Note that the communication processing unit 173 is for the terminal device 150 when various information related to wireless communication is input in the input unit in a state where the wireless communication function for the base station for the terminal device 150 by the terminal device 150 is available. The transmitting unit 174 is instructed to transmit to the base station.

  The transmission unit 174 receives various transmission instructions from the communication processing unit 173, and transmits to the base station for the terminal device 150 via the terminal base station I / F unit 152 or the in-vehicle device I / F unit 151. The transmission process is performed on the in-vehicle device 100 via the.

  For example, when the communication processing unit 173 receives an instruction to transmit connection information including terminal device information to the in-vehicle device 100, the transmission unit 174 transmits the connection information including the terminal device information to the in-vehicle device I / F unit 151. To the in-vehicle device 100 via

  For example, when the communication processing unit 173 receives an instruction to transmit connection information including IP connection information (input) to the in-vehicle device 100, the transmission unit 174 includes the connection including the IP connection information (input). Information is transmitted to the in-vehicle device 100 via the in-vehicle device I / F unit 151.

  Further, for example, when the communication processing unit 173 receives an instruction to transmit various information related to wireless communication with the base station for the terminal device 150, the transmitting unit 174 transmits the various information related to the wireless communication to the terminal base station. A call is transmitted to the base station for the terminal device 150 via the I / F unit 152.

[Connection information judgment processing in vehicle equipment]
Next, the flow of the connection information determination process in the in-vehicle device 100 according to the first embodiment will be described with reference to FIG. FIG. 6 is a flowchart for explaining the flow of the connection information determination process in the in-vehicle device 100 according to the first embodiment. In the following description, it is assumed that communication between the in-vehicle device 100 and the terminal device 150 is established.

  For example, as illustrated in FIG. 6, when the in-vehicle device 100 receives the connection information transmitted by the terminal device 150 (Yes in step S101), the in-vehicle device 100 adds a telephone number or a SIM to the terminal device information included in the received connection information. It is determined whether or not there is a card number (step S102). Note that when the connection information is not received (No at Step S101), the in-vehicle device 100 enters a state of waiting for reception of the connection information.

  When the terminal device information includes a telephone number or a SIM card number (Yes in step S102), the in-vehicle device 100 checks whether the telephone number or the SIM card number is registered in the storage unit 110. (Step S103).

  Subsequently, when the telephone number or the SIM card number is not registered in the storage unit 110 (No at Step S104), the in-vehicle device 100 displays on the monitor whether or not a new registration such as the telephone number or the SIM card number is necessary. (Step S105). In addition, when the necessity of new registration such as a telephone number is displayed on the monitor, the user information of the user who owns the terminal device 150 may be displayed and output together.

  Thereafter, when receiving a new registration request such as a telephone number or a SIM card number (Yes in step S106), the in-vehicle device 100 registers the telephone number or the SIM card number in the storage unit 110 (step S107).

  The in-vehicle device 100 sets a flag in the stop request information included in the connection information when the telephone number or the SIM card number has been registered (Yes in Step S104) or when registered in the storage unit 110. To the terminal device 150 (step S108).

  In-vehicle device 100 does not include terminal device information in the received connection information (No in step S102), or receives an instruction not to register a telephone number or a SIM card number (No in step S106). Then, the reconnection request information included in the connection information is flagged and transmitted to the terminal device 150 (step S109).

[Connection information determination process in terminal device]
Next, the flow of the connection information determination process in the terminal device 150 according to the first embodiment will be described with reference to FIG. FIG. 7 is a flowchart for explaining the flow of the connection information determination process in the terminal device 150 according to the first embodiment.

  For example, as illustrated in FIG. 7, the terminal device 150 detects whether wired communication using a cable or wireless communication using Bluetooth (registered trademark) is established in the in-vehicle device I / F unit 151 (step S201). ).

  When the terminal device 150 detects that communication with the in-vehicle device 100 is established (Yes in step S201), the terminal device 150 inserts a telephone number or a SIM card number into the terminal device information included in the connection information, The connection information is transmitted to the in-vehicle device 100 (step S202). Note that the transmitted terminal device information may include user information of the user who owns the terminal device 150.

  Subsequently, when the connection information is received from the in-vehicle device 100 (Yes at Step S203), the terminal device 150 determines whether or not a flag is set in the reconnection request information included in the connection information (Step S204). Thereafter, when the flag is not set in the reconnection request information (No in Step S204), the terminal device 150 determines whether or not the flag is set in the stop request information included in the connection information (Step S205). In addition, when the flag is set in the reconnection request information (Yes in step S204), the terminal device 150 inserts a telephone number or a SIM card number into the terminal device information included in the connection information, and stores the connection information. It transmits again with respect to the vehicle equipment 100 (step S202).

  Then, when the flag is set in the stop request information (Yes at Step S205), the terminal device 150 stops the wireless communication function in the general mobile network by switching the circuit of the RF unit included in the terminal device 150. (Step S206).

  Note that when the wireless communication with the in-vehicle device 100 is not established (No at Step S201), or when the flag is not set in the wave stop request information (No at Step S205), the in-vehicle device 150 is connected to the terminal device 150. Use of the wireless communication function is possible. In addition, the in-vehicle device 150 may make it possible to use the wireless communication function of the terminal device 150 when connection information from the in-vehicle device 100 is not received for a predetermined time or more due to a timeout or the like in step S203.

  That is, the connection information determination processing by the terminal device 150 illustrated in FIG. 7 is processing that is periodically performed during communication between the terminal device 150 and the in-vehicle device 100. In other words, since the communication connection is regularly confirmed, when the terminal device 150 is not in communication with the in-vehicle device 100 or when the in-vehicle device 100 and the terminal device 150 are not in a communicable range, The wireless communication function of the terminal device 150 can be used.

[Outgoing and relay processing sequence]
Next, the flow of transmission and relay processing according to the first embodiment will be described with reference to FIG. FIG. 8 is a sequence diagram for explaining the flow of transmission and relay processing according to the first embodiment. In the following, a case will be described in which communication between the in-vehicle device 100 and the terminal device 150 is established and the wireless communication function of the terminal device 150 is stopped according to a request from the in-vehicle device 100.

  For example, as illustrated in FIG. 8, when the terminal device 150 receives a request such as a call, web access, or transmission of an e-mail by a user who owns the terminal device 150, the IP connection information ( Connection information including (input) is transmitted to the in-vehicle device 100 (step S301).

  When the in-vehicle device 100 receives connection information including IP connection information (input), the in-vehicle device 100 performs processing related to IP connection with the base station for ITS, and uses the IP connection information (input) for ITS. To the base station (step S302).

  Subsequently, the base station for ITS transmits the IP connection information (input) to the communication destination via the ISP, and uses the IP connection information (output) transmitted from the communication destination as the IP connection information (output) by the terminal device 150. It transmits with respect to the vehicle equipment 100 as a response with respect to transmission of (input) (step S303).

  Thereafter, the in-vehicle device 100 relays communication between the terminal device 150 and the ITS base station by transmitting connection information including IP connection information (output) to the terminal device 150 (step S304). Then, the terminal device 150 receives connection information including IP connection information (output). For example, when the outgoing call by the terminal device 150 is a call, the above process is repeatedly performed.

[Effects of Example 1]
As described above, the in-vehicle device 100 requests the terminal device 150 to stop the wave while establishing communication with the terminal device 150 and provides relay communication through the in-vehicle device 100. While maintaining communication of the terminal device 150 by IP communication via 100, it is possible to suppress radio wave interference that occurs in the wireless band under the intelligent road traffic system.

  Further, the in-vehicle device 100 outputs to the monitor whether or not the terminal device information is registered for use of IP communication via the in-vehicle device 100 by the terminal device 150, and requests the terminal device 150 requested to register to stop the wave. Since the IP communication is provided only to the terminal device 150 that is stopped, the terminal device owned by a passerby in the vicinity of the vehicle is stopped unexpectedly, and radio wave interference that occurs in the wireless band is suppressed. Can do.

  Now, the embodiments of the vehicle-mounted device disclosed in the present application have been described so far. However, the present invention may be implemented in various different forms other than the above-described embodiments. Therefore, (1) provisional registration / main registration of terminal device information, (2) start request for wireless communication function, (3) configuration of in-vehicle device, (4) configuration of terminal device, (5) communication relay program, (6 ) A different embodiment in the communication switching program will be described.

(1) Temporary registration / main registration of terminal device information In the first embodiment, the case where a stop request is made to the terminal device 150 in which the identification information is registered has been described, but temporary registration in which the identification information is temporarily registered. Alternatively, it may be registered as main registration for registering identification information semipermanently.

  For example, when the identification information such as the telephone number or the SIM card number of the terminal device 150 is not registered in the storage unit 110, the in-vehicle device 100 temporarily registers or semi-permanently registers the identification information. Whether or not registration as main registration is necessary is displayed on the monitor.

  When the in-vehicle device 100 receives a registration request for temporary registration or main registration of identification information held by the terminal device 150 in which the identification information is not registered, the in-vehicle device 100 temporarily stores the identification information of the terminal device 150 in the storage unit 110. Register as a registration or full registration.

  For example, the main registration is for a user who frequently uses the vehicle such as the owner of the vehicle or a family member. It is possible to omit confirmation of necessity of registration of terminal device information. The registered terminal device information can be arbitrarily deleted.

  On the other hand, the temporary registration is for a user who does not frequently use the vehicle, such as a friend of the vehicle owner or a passenger, for example. Thus, the use of the IP communication for the temporarily registered user is permitted. The provisionally registered terminal device information is deleted when the engine is turned off in cooperation with the ignition key, or is deleted with the passage of a predetermined time such as three hours or one day.

(2) Request for starting wireless communication function In the first embodiment, the case where the wireless communication function of the terminal device 150 is stopped while communication between the in-vehicle device 100 and the terminal device 150 is established has been described. However, the stopped wireless communication function may be restarted at an arbitrary timing.

  For example, when the in-vehicle device 100 receives a request for starting a wireless communication function of the terminal device 150 connected at a predetermined input unit, the in-vehicle device 100 transmits the request for starting the wireless communication function to the terminal device 150. In the wireless communication function start request, connection information including stop request information for which no flag is set is transmitted to the terminal device 150.

  Specifically, in the processing flow of FIG. 7 periodically processed during communication between the in-vehicle device 100 and the terminal device 150, since there is no stop request information in step S205, use of the wireless communication function of the terminal device 150 Is possible. As for the start of the wireless communication function, a program for starting the wireless communication function is transmitted to the terminal device 150 in advance at the start of communication with the in-vehicle device 100, thereby executing the program according to a predetermined stop request. You may do it.

  That is, the in-vehicle device 100 resumes the wireless communication function of the terminal device 150 when IP communication cannot be performed due to a failure of the in-vehicle device 100 or when it is desired to make a call in an emergency such as a vehicle accident or the occurrence of a sudden illness. be able to.

(3) Configuration of the in-vehicle device In addition, information including the processing procedure, control procedure, specific name, various data and parameters shown in the document and drawings (for example, stored in the “storage unit 110”) The terminal device information and the like can be arbitrarily changed unless otherwise specified.

  Further, each component of each illustrated apparatus is functionally conceptual and does not necessarily need to be physically configured as illustrated. That is, the specific form of distribution / integration of each device is not limited to the one shown in the figure. For example, the connection processing unit 123 includes a “stop request processing unit” that performs stop request processing, a terminal device 150, and ITS use. All or a part of it is distributed functionally or physically in arbitrary units according to various burdens and usage conditions, such as being distributed to “relay processing units” that relay data exchanged between base stations Can be distributed and integrated. Further, all or a part of each processing function performed in each device may be realized by a CPU and a program that is analyzed and executed by the CPU, or may be realized as hardware by wired logic.

(4) Configuration of Terminal Device Also, information including the processing procedure, control procedure, specific name, various data and parameters shown in the document or drawing (for example, “I / F unit 151 for vehicle-mounted device”) ”And“ specific name of “terminal base station I / F unit 152”, etc.) can be arbitrarily changed unless otherwise specified.

  Further, each component of each illustrated apparatus is functionally conceptual and does not necessarily need to be physically configured as illustrated. That is, the specific form of distribution / integration of each device is not limited to the illustrated one. For example, the communication processing unit 173, a “stop processing unit” that stops the wireless communication function of the terminal device 150, and various information It is possible to distribute or consolidate all or part of it in arbitrary units according to various burdens or usage conditions, such as being distributed to a “calling instruction processing unit” that directs outgoing calls. it can. Further, all or a part of each processing function performed in each device may be realized by a CPU and a program that is analyzed and executed by the CPU, or may be realized as hardware by wired logic.

(5) Communication Relay Program In the above embodiment, the case where various types of processing are realized by hardware logic has been described. However, the processing may be realized by executing a program prepared in advance by a computer. Therefore, in the following, an example of a computer that executes a communication relay program having the same function as the vehicle-mounted device 100 shown in the above embodiment will be described with reference to FIG. FIG. 9 is a diagram illustrating a computer that executes a communication relay program.

  As shown in FIG. 9, the computer 11 as the in-vehicle device 100 includes an HDD 13, a CPU 14, a ROM 15, a RAM 16, and the like that are connected by a bus 18.

  The ROM 15 has a communication relay program that exhibits the same function as the vehicle-mounted device 100 shown in the first embodiment, that is, as shown in FIG. 9, a stop request transmission program 15a, a communication switching instruction program 15b, and a communication relay. A program 15c is stored in advance. Note that these programs 15a to 15c may be appropriately integrated or distributed in the same manner as each component of the in-vehicle device 100 shown in FIG.

  Then, when the CPU 14 reads these programs 15a to 15c from the ROM 15 and executes them, as shown in FIG. 9, the programs 15a to 15c communicate with the stop request transmission process 14a, the communication switching instruction process 14b, and the communication. It functions as the relay process 14c. The processes 14a to 14c correspond to the reception unit 121, the connection information determination unit 122, the connection processing unit 123, and the transmission unit 124 illustrated in FIG.

  Then, the CPU 14 executes a communication relay program based on the data recorded in the RAM 16.

  Note that the programs 15a to 15c are not necessarily stored in the ROM 15 from the beginning. For example, a flexible disk (FD), a CD-ROM, a DVD disk, a magneto-optical disk, It is connected to the computer 11 via a “portable physical medium” such as an IC card, or a “fixed physical medium” such as an HDD provided inside or outside the computer 11, and further via a public line, the Internet, a LAN, a WAN, etc. Each program may be stored in “another computer (or server)” or the like, and the computer 11 may read and execute each program from now on.

(6) Communication switching program In the above-described embodiment, the case where various types of processing are realized by hardware logic has been described. However, the processing may be realized by executing a program prepared in advance by a computer. Therefore, in the following, an example of a computer that executes a communication switching program having the same function as that of the terminal device 150 shown in the above embodiment will be described with reference to FIG. FIG. 10 is a diagram illustrating a computer that executes a communication switching program.

  As shown in FIG. 10, the computer 21 as the terminal device 150 includes an HDD 23, a CPU 24, a ROM 25, a RAM 26, and the like that are connected by a bus 28.

  In the ROM 25, a communication switching program that exhibits the same function as the terminal device 150 shown in the first embodiment, that is, as shown in FIG. 10, a wireless communication stop program 25a, a communication switching program 25b, and a transmission / reception program 25c. Are stored in advance. Note that these programs 25a to 25c may be appropriately integrated or distributed as in the case of each component of the terminal device 150 shown in FIG.

  Then, the CPU 24 reads these programs 25a to 25c from the ROM 25 and executes them, so that the programs 25a to 25c are, as shown in FIG. 10, the wireless communication stop process 24a, the communication switching process 24b, and the transmission / reception process. It comes to function as 24c. The processes 24a to 24c correspond to the reception unit 171, the connection information determination unit 172, the communication processing unit 173, and the transmission unit 174 shown in FIG.

  Then, the CPU 24 executes a communication switching program based on the data recorded in the RAM 26.

  Note that the programs 25a to 25c are not necessarily stored in the ROM 25 from the beginning. For example, a flexible disk (FD), a CD-ROM, a DVD disk, a magneto-optical disk, It is connected to the computer 21 via a “portable physical medium” such as an IC card, or a “fixed physical medium” such as an HDD provided inside or outside the computer 21, and further via a public line, the Internet, a LAN, a WAN, etc. Each program may be stored in “another computer (or server)” or the like, and the computer 21 may read and execute each program from now on.

  With respect to the embodiment including the first example and the second example, the following additional notes are disclosed.

(Additional remark 1) The stop request transmission procedure which transmits the stop request | requirement of a radio | wireless communication function with respect to the terminal device which performs radio | wireless communication with the base station for terminal devices,
A communication switching instruction procedure for transmitting an instruction to switch to communication with a base station device for an in-vehicle device via an in-vehicle device to the terminal device;
A communication relay procedure for relaying communication between the terminal device and the base station device for the vehicle-mounted device,
A communication relay program for causing a computer to execute.

(Additional remark 2) The detection procedure which detects that communication with the said vehicle equipment and the said terminal device was established is further performed,
The communication relay program according to appendix 1, wherein the stop request transmission procedure transmits a stop request for a wireless communication function to the terminal device when establishment of communication is detected by the detection procedure. .

(Additional remark 3) The identification information registration determination procedure which determines whether the identification information which the said terminal device has is registered into the memory | storage device which memorize | stores the identification information for identifying a terminal device separately,
A registration necessity output procedure for causing the display device to output the necessity of registration of identification information included in the terminal device determined that the identification information is not registered by the identification information registration determination procedure;
An identification information registration procedure for registering the identification information of the terminal device in the storage device when a request for registration of the identification information of the terminal device determined that the identification information is not registered is received; ,
The stop request transmission procedure, when it is determined that the identification information is registered by the identification information registration determination procedure, or when the identification information of the terminal device is registered in the storage device by the identification information registration procedure, The communication relay program according to appendix 1 or 2, wherein the stop request is transmitted to the terminal device.

(Supplementary Note 4) The registration necessity output procedure includes provisional registration or semipermanent registration for temporarily registering identification information of a terminal device that is determined to have no identification information registered by the identification information registration determination procedure. The display device outputs the necessity of registration as the main registration to be performed,
The identification information registration procedure stores the identification information of the terminal device when receiving a registration request for provisional registration or main registration of identification information possessed by the terminal device determined that the identification information is not registered. 4. The communication relay program according to appendix 3, which is registered as temporary registration or main registration in the apparatus.

(Additional remark 5) The communication relay program of Additional remark 1 or 2 which further performs the start request transmission procedure which transmits the start request | requirement of a radio | wireless communication function with respect to the said terminal device.

(Additional remark 6) The stop request transmission means which transmits the stop request | requirement of a radio | wireless communication function with respect to the terminal device which carries out radio | wireless communication with the base station for terminal devices,
A communication switching instruction means for transmitting to the terminal device an instruction to switch to communication with the base station device for the own device via the own device;
Communication relay means for relaying communication between the terminal device and the base station device for the own device;
An in-vehicle device characterized by comprising:

(Supplementary Note 7) A stop request transmission step of transmitting a stop request for a wireless communication function to a terminal device that performs wireless communication with a base station for the terminal device;
A communication switching instruction step for transmitting an instruction to switch to communication with a base station device for an in-vehicle device via an in-vehicle device to the terminal device;
A communication relay step of relaying communication between the terminal device and the base station device for the vehicle-mounted device;
The communication relay method characterized by including.

(Supplementary Note 8) When a wireless communication function stop request for a terminal device is received, a wireless communication stop procedure for stopping the wireless communication function;
Communication that switches communication of the terminal device to communication with the base station device for in-vehicle devices via the in-vehicle device when receiving an instruction to switch to communication with the base station device for in-vehicle devices via the in-vehicle device Switching procedure,
In accordance with the communication switched by the communication switching procedure, a transmission / reception procedure for transmitting / receiving data related to the communication,
A communication switching program for causing a computer to execute.

(Supplementary note 9) When a request for stopping the wireless communication function is received, wireless communication stopping means for stopping the wireless communication function;
When switching to communication with a base station device for an in-vehicle device via an in-vehicle device is accepted, communication switching for switching the communication of the own device to communication with the base station device for the in-vehicle device through the in-vehicle device Means,
In accordance with the communication switched by the communication switching means, transmission / reception means for transmitting and receiving data related to the communication;
The terminal device characterized by having.

(Additional remark 10) When the stop request | requirement of the radio | wireless communication function with respect to a terminal device is received, the radio | wireless communication stop process which stops the said radio | wireless communication function,
Communication that switches communication of the terminal device to communication with the base station device for in-vehicle devices via the in-vehicle device when receiving an instruction to switch to communication with the base station device for in-vehicle devices via the in-vehicle device Switching process;
According to the communication switched by the communication switching step, a transmission / reception step for transmitting / receiving data related to the communication,
The communication switching method characterized by including.

DESCRIPTION OF SYMBOLS 100 In-vehicle device 101 Terminal I / F unit 102 ITS base station I / F unit 110 Storage unit 120 Control unit 121 Reception unit 122 Connection information determination unit 123 Connection processing unit 124 Transmission unit 150 Terminal device 151 I / F for in-vehicle device Unit 152 terminal base station I / F unit 160 storage unit 170 control unit 171 reception unit 172 connection information determination unit 173 communication processing unit 174 transmission unit

Claims (7)

A stop request transmission procedure for transmitting a stop request for a wireless communication function to a terminal device that performs wireless communication with a base station for the terminal device;
A communication switching instruction procedure for transmitting an instruction to switch to communication with a base station device for an in-vehicle device via an in-vehicle device to the terminal device;
A communication relay procedure for relaying communication between the terminal device and the base station device for the vehicle-mounted device,
A communication relay program for causing a computer to execute. Further executing a detection procedure for detecting that communication between the in-vehicle device and the terminal device is established,
2. The communication relay according to claim 1, wherein the stop request transmission procedure transmits a stop request for a wireless communication function to the terminal device when establishment of communication is detected by the detection procedure. program. An identification information registration determination procedure for determining whether or not identification information of the terminal device is registered in a storage device that stores identification information for individually identifying the terminal device;
A registration necessity output procedure for causing the display device to output the necessity of registration of identification information included in the terminal device determined that the identification information is not registered by the identification information registration determination procedure;
An identification information registration procedure for registering the identification information of the terminal device in the storage device when a request for registration of the identification information of the terminal device determined that the identification information is not registered is received; ,
The stop request transmission procedure, when it is determined that the identification information is registered by the identification information registration determination procedure, or when the identification information of the terminal device is registered in the storage device by the identification information registration procedure, The communication relay program according to claim 1, wherein the stop request is transmitted to the terminal device. The registration necessity output procedure includes, as temporary registration for temporarily registering identification information possessed by a terminal device that has been determined that identification information has not been registered by the identification information registration determination procedure, or as permanent registration for semi-permanent registration. The registration device is output to the display device,
The identification information registration procedure stores the identification information of the terminal device when receiving a registration request for provisional registration or main registration of identification information possessed by the terminal device determined that the identification information is not registered. The communication relay program according to claim 3, wherein the communication relay program is registered as temporary registration or main registration with the apparatus.   The communication relay program according to claim 1 or 2, further comprising executing a start request transmission procedure for transmitting a start request for a wireless communication function to the terminal device. A stop request transmitting means for transmitting a stop request for a wireless communication function to a terminal device that performs wireless communication with a base station for the terminal device;
A communication switching instruction means for transmitting to the terminal device an instruction to switch to communication with the base station device for the own device via the own device;
Communication relay means for relaying communication between the terminal device and the base station device for the own device;
An in-vehicle device characterized by comprising: A stop request transmission step for transmitting a stop request for a wireless communication function to a terminal device that performs wireless communication with a base station for the terminal device;
A communication switching instruction step for transmitting an instruction to switch to communication with a base station device for an in-vehicle device via an in-vehicle device to the terminal device;
A communication relay step of relaying communication between the terminal device and the base station device for the vehicle-mounted device;
The communication relay method characterized by including.

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